Steam-trap.



No. 895,989. PATENTED AUG. 11, 1908'.

R. EISENTRAUT & F. VIELER.

STEAM TRAP.

APPLICATION FILED JAN. 14, 1908.

RICHARD EISENTRAUT AND FRIEDRICH ORS TO ACTIEN-GESELLSCHAFT DERDILLINGER HUTT-ENWERKE,

VIELER, or DILLINGEN-SAAR, GERMANY, ASSIGN- OF DILLINGEN-ON- THE-SAAR,GERMANY, A CORPORATION OF GERMANY.

STEAM-TRAP.

Specification of Letters Patent.

Patented Aug. 11, 1908.

Application filed. January 14;, 1908. Serial No. 410,784.

To all whom it may concern:

Be it known that we, RIoHARD EISEN- TRAUT and FRIEDRICH VIELER, residingat Dillingen-Saar, Germany, have invented certain new and usefulImprovements in Steam- Traps; and we do hereby declare the following tobe a full, clear, and exact description of the invention, such as willenable others skilled in the art to Which it appertains to make and usethe same.

This invention relates to'improvements in automatic discharging devicesfor the well known kind of vacuum liquid collecting apparatus in whichthe collecting chamber is placed in communication during the fillingperiod with the vacuum, and during the discharge period with the outsideatmosphere, by means of suitable valves controlled by floats.

The invention consists in thespecial construction of the device and inthe method of working due to the same, as set forth in the claims.

The device according to this invention is illustrated in theaccompanying drawing in Figure 1 in a longitudinal section and in Fig. 2in plan with the cover removed.

The discharging device is connected to the means producing the vacuum bythe branch a provided with a check valve 1) which opens inwards the saiddevice being first exhausted. Owing to the pressure of the atmosphericair the air-valve c and the liquid discharge valve (Z are closed. Theliquid can then enter from the vacuum conduit through the valve 6 intothe collector vessel f which is provided with two floats g is. As soonas the vessel f is filled to such an extent that the small float israised, the locking lever h which held fast the lever i, is displacedand thus the float 7c is disengaged. The bottom float, therefore quicklyrises and operates the bell crank lever .7; causing it to take up aposition in which the inlet valve 5 which was hitherto locked, isreleased and closed by the action of the spring Z. The spring 1 isarranged around the valve-stem, between the valve I) and a stationaryabutment, and the valvestem has a yoke m for engaging with the short armof the bell-crank lever 'i. During further upward movement, the spindleof the float k which passes freely through the float g strikes against asecond bell crank lever. 0 by the movement of which the valve 0 isopened. Owing to the admission of air into the vessel f, the vacuum isdestroyed and the liquid discharge valve d is opened, so that the vesselcan be emptied. The upper float g is held by the locking lever h and thestop it in the highest position. WVhen the liquid sinks, the sinkingfloat 7c releases the lever 0 and the valve 0 after which it brings thelever i back into the original position and opens the inlet valve b. Atthe same time the lever h fixes or locks the lever i so that theoperation begins afresh.

What we claim is:

1. In a steam-trap, the combination, with a vessel for steam and waterprovided with an inlet-valve, an air-valve, and an automaticoutlet-valve of a main float, a pivoted lever operatively connecting thesaid float with the said inlet-valve, a pivoted catch engaging with thesaid lever and normally holding open the said inlet-valve, a pivotedtrip-lever connected with the said air-valve and operated by the saidmain-float, and an auxiliary-float arranged above the said mainfloat andoperatively connected with the said catch.

2. In a steam-trap, the combination, with a vessel for steam and waterprovided with an inlet-valve, an air-valve, and an auto maticoutlet-valve of a main-float provided with a stem, a pivoted bell-cranklever operatively connecting the said stem and inletvalve, a pivotedtrip-lever connected with the said air-valve, and arranged in the pathof the said stem, a pivoted catch engaging with one arm of the saidbell-crank lever and normally holding open the said inlet-valve, and anauxiliary-float slidable on the said stem above the said ma'in float andoperatively connected with the said catch.

In testimony whereof we affix our signatures, in presence of twowitnesses.

RICHARD EISENTRAUT. FRIEDRICH VIELER.

